Vending machine



FIG. 1 is a front elevational view of a vending machine showing our new design;

FIG. 2 is a left side elevational view of the invention;

FIG. 3 is a bottom plan view of the invention;

FIG. 4 is a top plan view of the invention;

FIG. 5 is a rear elevational view of the invention; and

FIG. 6 is a right side elevational view of the invention. 

The ornamental design for a vending machine, as shown. 